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My betta fish has a white spot growing on its scales. What's wrong?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male | unneutered

My beta fish has some big white spot on its scales. It was smaller before-- now I've come back from college & it's gotten larger. What's wrong?

1 Answer

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on December 15th, 2016

It's possible Bartholomew has a skin or fungal infection that is affecting him. Testing your water may help if there is an environmental cause, as well as treating for fungal infections. Most pet stores will carry water treatments for the most common causes of fungal growths on fish.

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